Flanged metal pipe and method of making.



No. 893,434. PATENTED JULY 14, 1908. L. H. BRINKMAN.

FLANGED METAL PIPE AND METHOD OF MAKING.

APPLIOATION FILED JAN, 12, 1906.

2 SHEETS-SHEET 1.

TIQSSQS ITTUGTI'EOT" LCLLILS H PATENTED JULY 14, 1908.

L. H. BRINKMAN. FLANGBD METAL PIPE AND METHOD OF MAKING.

APPLICATION FILED JAN, 12, 1906.

2 SHEET$SHEET Lv ITLDEBT'V'JOP Louis H Brinkmcm. B

Witnesses c torneg into contact and drawn together by the coup- UNITED s'rAtras PATENT, OFFICE.

LOUIS H. BRINKMAN, OF HARTFORD, CONNECTICUT, ASSIGNOR TO WHITLOCK COIL PIPE COMPANY, OF WEST HARTFORD, CONNECTICUT, ACORPORATION OF CONNECTICUT.-

FLAN GED METAL PIPE AND METHOD OF MAKING.

No. 893,434. Specification of Letters Patent. Patented July 14, 1908.

Application filed January 12, 1906. Serial No. 295,742.

To all whom it may concern: ing surfaces of the inturned members 6 are Be'it known that I, LoUIs H. BRINKMAN,'a brought into planes at right angles to the citizen of the United States, residing at axes of their respective pipes, they form Hartford, in the county of Hartford and closely contacting surfaces when coupled to- State of Connecticut, have invented a new gether and dispense in ordinary cases with and useful Improvement in Flanged Metal the use of gaskets. The end 8 of the flange be- Pi es and Methods of Making, of. which the ing welded to the following'is a specification accompanied by flan e more rigid and also holds more sedraWings,-form1ng a part of the same, in cure y the inturned membersb so that, if which re uired, the faces of the members a may be Figure 1 represents two coupled sections of milled or ground exactly parallel to each pipe having opposing flanged ends embodyother and at right angles to the axis of the ing my invention. Fig. 2 1s a side view of a pi e and an absolutely tight fit obtained. pipe flanging machine,for producing aflanged lMy improved pipe flange may be convenpipe embodying my invention. Figs. 3, 4 iently constructed as follows:'A section of and 5 are detailed views of the flanging mechpipe to be flanged is held between clampanism, showing diflerent steps of the process. ing jawssu ported by uprights 11 with the Fig. 6 is a view of the mechanism used in end 12 of tl e pi e presentedto a revolving welding the flange to the interior of the pipe. face plate 13. B Fig. 7 represents a modified form of flange, plate are provided in which the blocks 14, 15 and Fig. 8 represents two coupled sections of and 16-are fitted to slide. The block 14 may pipe with the flanged ends shown in Fig. 7. be fastened in any desired osition in the Similar reference letters and figures refer to Ways on the face of the rev lvin'g late '13, similar parts in the different views. the block '15 maybe moved radially by an 1 My present invention relates to an imadjusting screw turned by the hand wheel17, proved form of flange formed upon the ends and the block 16. is'adjusted' by the hand of metal pipes which are to be coupled towheel 18. Held on a stud 20 carried by the gether, and to the method of making the block 15 is a roller 21 having a rounded pe-' same. riphery adapted to draw a portionofthe Referring to the accompanying drawings, pi e outward-into'an annular groove 22'of a 1, 2, denote two sections of pipe having their roller 23, which is held loosely on a stud 24 opposing ends flanged and coupled together carriedbythe block 14, as shown in Fig. 3. by coupling collars'3, 3, and coupling bolts 4, 4.- This shaping'process' expands the ends of the My improved pipe flange is made by turnpipe and forms an internal semi-circular ing over the end of apipe by a sharp bend at groove 25. Wh the groove 25 has been 5, 5, to form an outwardly turned member 5 ggis removed from the stud pipe lying axis of the pipe forming an inwardly turned member 6, turning the end of the flange by a right angle bend at 7 parallel to and inside is j ournaled in the block 16 having its face at right angles to the axis of the face plate. The block 16 is also pr'o of the pipe itself, and welding said parallel vided with a projecting arm 27 parallel with ortion 8 of the flange to the pipe. I therethe axis of the face late. Sliding in ways y leave an inclosed annular space 9 between j in said arm is a bloc 28 carrying a spindle 29 on which is journaled a roll 30 having a concave face, withits axis at an oblique angle to the axis of the face plate. The hand wheel 31 and screw 32 furnish means for adjustin the block 28 in the arm 27. When the roller 30 has been brought into close contact with the angle formed by the periphery of the pipe and its expanded end, as shown in Fig. 3, the face plate is fed along in its bearings toward the end of the pipe by means the bend 5 and the inturned member 6 of the flange and securely fasten the end 8 of the flan e to the pipe itself. This forms a double ange with the inturned member 6 on the adjacent ends of the pipes brought lin collars 3-as shown in Fig. 1, said coupling collars being provided with opposin grooved faces adapted to receive and close y fit the outersurfaees of the flanges. As theoppospipe renders the entire iametric Wayson the face 34, shaft 35, and-hand-Wheel ment ofithe {face plate toward the end of :the, groove face plate I and by. the

'30, which is also moved in the that it constantly remains in contact with of a feed screw *33 which is revolved by gears 36. Thismove shaft carries the :roller '26 against the expanded endof the pipe, "thereby bringing the lnturned member of the flangeinto a: lane atrightangles with the axisofthe revo ving sa me operation'forcing the outwardly turned member of the flange intocontact withitheconcave side of the roll meantimev so the ;pipe, turned memberfin conformity thereto. The movement of the face plate toward the pipe also brings the roller 19 inside the pipe and the roller 1 9by the revolution of the face plate bends the'end 8 of the flange at right anglesat 17, thereby 'bringin and incontact with the insi the .pipe.

it parallel to e periphery of During these operatlons the end of the ;pi e operated upon -isrendered sufficiently p astic by heat to allow 'itto be'easily 1 sha ed'betweenthe'various rolls. 'The pipe is t en removed-fromthe flange bending machine and its end heated. to a welding heat.

, The end 8 of the flange in contact with the its outer edg by I oblique: an "bent paral insideperiphery of-the pipe is'then subjected to the action of a pneumatic hammer as shown in "Fig. 6, which welds that portion of This greatly strengththelflange, and

ofthe flange-atright angles with the-axis of the pipe. This inturned member 6 may therefore be faced, so .that a perfect fit between two abutting flanges may be obtained,

and the inturned member when reduced .in-

thickness by facingwilllbe securely .held at the outwardly turned memberof 'the'flange, and atits inneredge'by the welded portion'8.

. Thepresence of the. annular space 9 atthe outer edges of the flanges makesthem of increased thickness which, fitting the grooved face'of the'clamping collars 3, 3, prevents the flanges'from being pulled-out of t -a-lon itudinal strainon the pipe.

e collars-by In: ig. =7 '1 show almodified flange embodying.my.invent1on in which the end of the pipe is first bent atright angles at 37, the portion 38-is turned inwardly toward'the pipe at an leand the end'39 of-the flange is el with the axis of the pipe and contacts :with the outside of the pipe. In

this flange I avoid the necessityof welding the end'39 to the pipe as it will be securely held incontact with the 'pipeby the collar 3,

the inside of which is fitted with an annular What I claim as my invention and desire to secure-by Letters Patent is "1. As an arti le of manufacture, a pipe having a flange nearits end, said .flange bemg thereby shaping the outwardly turned outward at an oblique angle to the axis of the pipe, returned inwardly upon itself-in a plane-at right angles to-the axis of the ,pipe, withits end bent parallel to and in contact with the inside of'the pipe and fastened thereto. 7

.2. As an article of manufacture, a pi e having a flange at its end integral with the pipe, composed of outwardly and inwardly turned sections, said sections being in contactwith each other at the base of the flange, and with the end of the inwardly turned sec tion parallel to and in contact with the periphery of'the pipe.

3. As an article of having near its end .an external flange mtegra'l with the pipe, composed of an outwardly and an inwardly turned section, with the edge of the inwardly turned section bent inside the pipe and fastened thereto.

4. As an article of manufacture, a pipe having at its'end anexternal flange integral 'with the pipe, comprising outwardly andinwardly turned sections, with the end-of the inwardly turned section parallel with and fastened to-the inside periphery of the pipe, and with the inwardly turned section accurately faced ata predetermined angle with the axis of the pipe. a

5. As an article of manufacture, a pi e having a flangeat its-end integral with t e pipe, comprised of outwardly and inwardly turned sections, with the end of the inwardly turned section bent in a plane parallel with the' pipe and fastened thereto.

6. As an article of manufacture, a pi e having a flange at its end integral with the pipe, composed of ou wardly and inwardly turned sections, with the end of the inwardly turned section bent in a plane parallel with v the pipe and in contact with thepipe.-

Dated this Sth'day'of January'19 06.

I [Louis H. BRINKMAN.

Witnesses:

ARTHUR F. THYLE, I Josnrrr E. LEWIS. 

